fig9

Figure 9. XPS of cathode of PMMFCs before and after Cd(II) adsorption. PMMFCs: photosynthetic microalgae microbial fuel cells; XPS: X-ray photoelectron spectrum.
Figure 9. XPS of cathode of PMMFCs before and after Cd(II) adsorption. PMMFCs: photosynthetic microalgae microbial fuel cells; XPS: X-ray photoelectron spectrum.
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